Cosmetics Formulation Development

Will ask for advice is to put a solution on the back of the head to speed up hair growth. but here it is using ethyl formula แอลกอฮอล์ 50% butylene Glycol 30%, purified water 20%, still feel that the scalp is allergic, itchy, itchy, want to know what solvent should be replaced is to make 1% dutasteride solution

Hello, please inform me about the solubility of dutasteride so that I can make a correct recommendation.